package com.xh.core.util;

import com.xh.l.L;

import java.security.MessageDigest;

/*
 * @Author daiwei
 * @Description
 * @Date 2018/9/25 15:22
 **/
public class MD5Utils {

    private static final String hexDigits[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"};

    public static void main(String[] args) {
        L.verify();
        System.out.println(string2MD5("123456"));
    }

    /***
     * MD5加码 生成32位md5码
     */
    public static String string2MD5(String inStr) {
        return MD5Encode(inStr);

    }

    /**
     * 描述：生成MD5字符串
     * jiaqiming 2016年9月20日 下午6:41:38
     *
     * @param origin
     * @return
     */
    public static String MD5Encode(String origin) {
        String resultString = null;
        try {
            resultString = new String(origin);
            MessageDigest md = MessageDigest.getInstance("MD5");
            resultString = byteArrayToHexString(md.digest(resultString.getBytes("UTF-8")));
        } catch (Exception exception) {
        }
        return resultString;
    }

    private static String byteArrayToHexString(byte b[]) {
        StringBuffer resultSb = new StringBuffer();
        for (int i = 0; i < b.length; i++)
            resultSb.append(byteToHexString(b[i]));

        return resultSb.toString();
    }

    private static String byteToHexString(byte b) {
        int n = b;
        if (n < 0)
            n += 256;
        int d1 = n / 16;
        int d2 = n % 16;
        return hexDigits[d1] + hexDigits[d2];
    }
}